The telephone is a more focused representation of the sharing of words and ideas. Like Talking, having this information conveyed over a telephone can portray either the need to recognize the importance of what is being said or your ‘distance’ from acknowledging the information as being relevant to you. A landline especially, allows you to trace how 'wires can get crossed' or how assumptions require clear communication.
All phones are a symbol of how various aspects of the psyche seek to communicate with you. The person who calls you should be considered in terms of the adjective you would use to describe them - they can be representing a side of you seeking expression. The message that they share with you should also be considered as a message that may be coming from the Higher Self.